The majority of people don't know enough to teach others even children. Then there are the recent horror stories of starvation, torture performed by the darkside of home "schooling" which uses that as an excuse to keep the children out of the sight of the public so as to hide the abuse. So trying to paint the entire phenomenon as though it was ALL FReepers or other conscientious parents is a bit too much.
And the costs of all doing this would be staggering even if all were successful.
Oh please! There are just as many stories of abuse at schools. Those people who are abusing their children while supposedly homeschooling them were doing it when their kids were IN school, and in most cases were already known to the child welfare agencies.
It's just the media's attempt to paint all homeschoolers as right wing Christian odd balls who have no business teaching their kids. What's interesting is that there are just as many homeschoolers who are NOT doing it for religious reasons, but you rarely hear about them.
As for your contention that most people don't know enough to teach their kids, just how much to you have to know to teach a child to read? Not much. It's fairly easy to teach a child their math facts.
When the kids get older, and they've moved into subjects about which their parents know little, they can either teach themselves ( like our daughter did with Japanese), or we can hire tutors, the kids can take co-op classes with other homeschoolers, or attend a Community College, as our daughter is doing for Chemistry and Physics so she can have access to good labs.
Do you think you could put this post into standard English ?